Volume IV of the textbook presents the most important and significant information in gynecology in accordance with the Federal Educational Standard of the Russian Federation. This volume includes general knowledge on female reproductive system physiology, basic concepts, classifications and actual methods of diagnostic of gynecological disorders, principles of prevention and treatment. Emphasis is made on the occurrence of reproductive disorders and obstetric complications in gynecological disorders, which dictates the need to preserve the reproductive health of the population. For students of the institutions of higher medical education, residents, postgraduate students, attendees of retraining courses, teachers, as well as general practitioners and obstetricians.